mix-master

Automate short-form ad audio mixing from video, voice-over, music, and effects using FFmpeg.

6|1|Updated May 29, 2026
One-click install
npx skills add https://github.com/gooseworks-ai/gooseworks-ads-skills --skill mix-master
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: mix-master
Source: https://github.com/gooseworks-ai/gooseworks-ads-skills/tree/main/skills/atoms/audio-editing/mix-master
Command: npx skills add https://github.com/gooseworks-ai/gooseworks-ads-skills --skill mix-master

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) components.

What problem does it solve?

This Skill solves the problem of manually mixing audio for short-form ads, replacing the time-consuming process of multi-pass tuning with a streamlined, one-pass protocol.

Core Features & Use Cases

  • One-pass Audio Mixing: Combines video, voice-over (VO), music, and sound effects (SFX) into a cohesive audio track in a single FFmpeg pass.
  • Customizable Parameters: Allows for detailed control over volume levels, timing, and compression, with options for voice-over boost and synchronization with video duration.
  • Automated Verification: Provides a manifest and verification report for quality checks, ensuring the final output meets predefined standards.

Quick Start

Mix the audio for the video 'video.mp4' with the voice-over files at 'vo-clips' and music at 'music-file.mp3', outputting to 'final-audio.mp4'.

Frequently Asked Questions about mix-master

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I automate audio mixing for short-form ads using FFmpeg?▼

Automate audio mixing for short-form ads by combining video, voice-over, music, and sound effects inputs into a cohesive track in a single FFmpeg pass. This replaces time-consuming multi-pass tuning with a streamlined protocol.

Can I combine voice-over, music, and sound effects in one FFmpeg pass?▼

Combine voice-over, music, and sound effects in one FFmpeg pass using automated sidechain compression and loudnorm. This process synchronizes audio inputs with a defined target video duration.

How does FFmpeg sidechain compression work for voice-over mixing?▼

Sidechain compression for voice-over mixing automatically lowers music volume when the voice-over plays. The Skill utilizes this FFmpeg filter alongside loudnorm to ensure clear dialogue and balanced loudness levels.

Does this audio mixing process verify loudness levels and timing synchronization?▼

The audio mixing process verifies loudness levels and timing synchronization by generating a manifest and verification report. This automated quality check ensures the final output meets predefined standards.

What is the best way to mix audio for short-form video ads without manual tuning?▼

The best way to mix audio for short-form video ads without manual tuning is using an automated one-pass FFmpeg protocol. It handles volume levels, timing, and compression while providing a final verification report.

Do I need to define a target duration before mixing audio for short-form ads?▼

Defining a target duration is required before mixing audio for short-form ads. This constraint ensures the voice-over, music, and sound effects synchronize correctly with the video length during the FFmpeg pass.